Shuttle



l mented duly 311, i223.

nssries rsxrss serfs VIUIQE LEDQUX, 91 NEW BEDFORD, MASSACEUfiETTS, ASSIGNOR T HUPELDALE MMIUFACIURING oomrsnrornrnronn, MASSACHUSETTS, A GOEYOEATIQE 0F mssnonosnrrs.

Application filed September To allwkom itvnay concern Be it known that I, Vioron LsnoUx, a. citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Shuttles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in'the art to which it sppertoins to make and use the some.

This invention relates to an improvement 'in self-threading shuttles. The object of the invention is toprovide a. self-threading shuttle adopted to be easily threaded and in c which the thread is thereafter confined withof the seroll member.

in the shuttle in esuperior and novel manner during the normal operetion of the shuttie to the end that dethreeding of the shuttle is minimized. Y

'With this object in view, the'invention consists ill the shuttle hereinafter described and particularly pointed out in the claims. In the drswin s illustrating the preferred embodiment of t e invention, Figure 1 is e.

empective of a portion of a. shuttle emodying the present invention; Fig. 2 is a plan of the some; lg. 3 s. side elevation; Fig. 4 e. section onfthe line i of Fig. 3; end Figs 5 and ti details showing the shops The selfithrending shuttle illustreted in the drawings is described as follows: The shuttle body is provided with the usual openin 11 for theareception of the bobbin 12, on with the usual delivery eye 13. 'The filling or thread .is conducted into and through the delivery eye 13 by the improved thread block indicated st 14. The thread block 1% is provided with the usual longitudinal thread passage 15 and with the shield 16 overlapping the book 17. All of the parts thus for described are well-known and fomilisr to those skilledin the art and form alone no port of the present invention.

In order to confine the thread within the thread passage 15, oil improved thread guard is provided which is describedas follows: A sheet motel scroll 20 of material length is interposed in the thread passage wand 15 arranged so that its longitudinel axis coincides substantially with the longitudinal axissof the bobbin. The scroll 20 is soldered to the sides and bottom of the thread passage so as to be securely held therein and to SHUTTLE.

Q, 1919. Serial No. 322,354.

between the upper .side of the edge 22 and l the wall of the depression 25 thus permitting the thread to pass around the end of the edge 22 and between the edges 22, 23 into the in terior of the scroll. The lower free edge 23 of the scroll is inclined outwardly in e 'gruduul helical path as shown in dotted lines in Fig. 2 for a purpose to be described.

An upper guard 27 is extended from one well of the thread passage 15 in the some general direction as the upper free edge 22 of the scroll and serves as e guide or beering surface for the thread, to direct the some into the inlet opening between the Y member 22 slid the wall of the depression 25. When the shuttle is to be threaded, the thread extends from the bobbin outwardly over the top of the thread block 14 so thot asthe shuttle starts on its first pick, the.

thread is drawn across the guide member 27L The guide member 2? directs the thread downwardly into and through the openin between the upper member 22 of the scro l and the well of the depression 25. As the shuttle continues on its flight, the natural unwind from the bobbin carries the thread inwardly across the helicel edge of the lower member 23 of the scroll so that the threeld is in this manner conducted by the edge 23 between the upper and lower edges, 22, 23 and into the interior of the scroll. Inthis position the thread co tinues during the normal operation of the shuttle.

it will be observed that the thread is confined by the scroll at the lower portion of the longitudinal three-d passage 15 end at a point substantially in line with the skis of the bobbin The cooperation of the upper and lower members 22.23 of the scroll 20 operates to present on indirect outlet passage lid to the thread with the result that the tend- Bil . downwe thread passege is'sueh es to form a daring mouth-With the other Well thereof so "chei, as the threed passes over the -top of ihe ichreed block, it is directed down around the end of the upper member 22 of the scroll T he important feature of the invention re sides in the provisien of the improved scroll in the longieudinai ihreid passage whereby the ihreed is successfully confined in an operative position frherein during the normal eperetion (die. shuizrle. The particular arrangement 0f the edges 0:? the scroll raids materially in ohe' ease 0f the lhreading opermien.

Having thus described the invenlzion, what is claimed is:-

1. A thread bio-ck i or shuttles having, in combineti0n,' e longiiudinal thread passage, means for guiding the thread to the delivery eye of the shuttle, and a, scroll. in the longitudinal thread pessege in substantial aligninenr with the axis of the bobbin comprising :1 band of material length hiring iis upper side edge overlap ping the lower side edge spaced e shert distance theueirox'n and e guerd everhanging said upper side edge and exiendedj downwardly from one "well of the i read passage in the same direc bien as seid upper side edge 0f the scroll, whereby during the threading operatien rhe lihreed is guided y and mused re ness ereund the upper side and nce ever the lower side edge abhe i.

tie

selflthreading w ee bobbin, said scroll comprising a bend of niateriellength having its upper side edge overlapping the lower side edge and spaced 2, shore distance "therefrom the edges being arranged to extend in a gradual helical pelh from ihe inner end of the scroll upwardly and outwardly thereelong whereby during; the threading" operation of ihe shuttle lhe thread is guided by said helical lower into the scrolh A thread block for self-threading); shuttles having, in combination, 1L longitudinal thread passage provided with e recess in onewvall, means 01 guiding die thread to the delivery eye of the shuttle and a scroll within the-longitudinal thread pussage and in substantial alignment Wilih the axis of the bobbin, said scroll having upper edge extending; downwardly into the recess of the thread passage to form :1 narrow inlet therewith and having its 10 en edge extended beneath the upper edge in e helical path toward the other well of the thread passage whereby during: the threading operation the "ehreed is guided by said lower edge into the screll.

VICTGR LEDQU 

